I am writing an implementation of a DES encryption with a 64 bit plaintext, taken from the pixel information in a BMP file. So I want to skip the header which is 54 bytes, but I am not sure how to do this. This will not be a dynamic project, in the sense that I will always use the same BMP file (as I am producing both a CBC and EBC mode BMP file at the program finish)
If you have no idea what I am talking about, check out this link.
So I would like to open the bmp file, skip the first 54 bytes, then consecutively read 8 byte blocks and encrypt them. I just don't know very much about using files in C++.